FUNCTIONAL GROUPS IN BIOMOLECULES & BONDING CAPACITY ….some more chemistry…

Functional Group Cluster of atoms that are REACTIVE

1) Hydroxyl - OH Found in alcohols

2) Carboxyl – COOH/COO- Found in acids Acetic Acid

3) Amino – NH, NH2, NH3+

4) Sulfhydryl - SH

5) Phosphate – PO43-/-H3PO4

6) Carbonyl – CO/COH

PRACTICE

Which of the following correctly illustrates a ketone?

Which of the following correctly illustrate a carboxyl group?

BONDING CAPACITY The oxidation number (or number of bonds that an atom can form with neighbouring atoms or the ionic charge)

…BONDING CAPACITY Bonding capacity for common elements: C - 4 H - 1 S – 2 or 6 N – 3 or 5 P – 5 (in phosphate)

…BONDING CAPACITY

…BONDING CAPACITY H C C CH OH H

…BONDING CAPACITY

…BONDING CAPACITY

HOMEWORK Page 23: # 1-3,7,12,14,15 Page 25: Copy Table 1 into your notes Complete the worksheet Answer key is on the wall Print file 5 for tomorrow